2059993861 has 4 divisors (see below), whose sum is σ = 2060396800. Its totient is φ = 2059590924.

The previous prime is 2059993847. The next prime is 2059993939. The reversal of 2059993861 is 1683999502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1683999502 = 2 ⋅841999751.

It is a cyclic number.

It is not a de Polignac number, because 2059993861 - 2⁵ = 2059993829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2059993799 and 2059993808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2059993811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193701 + ... + 204058.

It is an arithmetic number, because the mean of its divisors is an integer number (515099200).

Almost surely, 2^2059993861 is an apocalyptic number.

It is an amenable number.

2059993861 is a deficient number, since it is larger than the sum of its proper divisors (402939).

2059993861 is an equidigital number, since it uses as much as digits as its factorization.

2059993861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402938.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The square root of 2059993861 is about 45387.1552424251. The cubic root of 2059993861 is about 1272.3950631067.

The spelling of 2059993861 in words is "two billion, fifty-nine million, nine hundred ninety-three thousand, eight hundred sixty-one".